1 /* Test for string function add boundaries of usable memory.
2 Copyright (C) 1996,1997,1999,2000,2001,2002 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 /* Make sure we don't test the optimized inline functions if we want to
25 test the real implementation. */
26 #undef __USE_STRING_INLINES
33 #include <sys/param.h>
36 #define MAX(a, b) ((a) > (b) ? (a) : (b))
40 main (int argc, char *argv[])
42 int size = sysconf (_SC_PAGESIZE);
46 adr = (char *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
47 MAP_PRIVATE | MAP_ANON, -1, 0);
48 dest = (char *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
49 MAP_PRIVATE | MAP_ANON, -1, 0);
50 if (adr == MAP_FAILED || dest == MAP_FAILED)
53 puts ("No test, mmap not available.");
56 printf ("mmap failed: %m");
62 int inner, middle, outer;
64 mprotect(adr, size, PROT_NONE);
65 mprotect(adr + 2 * size, size, PROT_NONE);
68 mprotect(dest, size, PROT_NONE);
69 mprotect(dest + 2 * size, size, PROT_NONE);
72 memset (adr, 'T', size);
75 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
77 for (inner = MAX (outer, size - 64); inner < size; ++inner)
81 if (strlen (&adr[outer]) != (size_t) (inner - outer))
83 printf ("strlen flunked for outer = %d, inner = %d\n",
93 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
95 for (middle = MAX (outer, size - 64); middle < size; ++middle)
97 for (inner = middle; inner < size; ++inner)
103 cp = strchr (&adr[outer], 'V');
105 if ((inner == middle && cp != NULL)
107 && (cp - &adr[outer]) != middle - outer))
109 printf ("strchr flunked for outer = %d, middle = %d, "
110 "inner = %d\n", outer, middle, inner);
121 adr[size - 1] = '\0';
122 if (strchr (&adr[size - 1], '\n') != NULL)
124 puts ("strchr flunked for test of empty string at end of page");
129 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
131 for (middle = MAX (outer, size - 64); middle < size; ++middle)
133 for (inner = middle; inner < size; ++inner)
139 cp = strrchr (&adr[outer], 'V');
141 if ((inner == middle && cp != NULL)
143 && (cp - &adr[outer]) != middle - outer))
145 printf ("strrchr flunked for outer = %d, middle = %d, "
146 "inner = %d\n", outer, middle, inner);
156 #if !defined __FreeBSD__ && !(defined __sun__ && defined __svr4__)
158 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
160 for (middle = MAX (outer, size - 64); middle < size; ++middle)
165 cp = (char *) rawmemchr (&adr[outer], 'V');
167 if (cp - &adr[outer] != middle - outer)
169 printf ("rawmemchr flunked for outer = %d, middle = %d\n",
180 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
182 for (inner = MAX (outer, size - 64); inner < size; ++inner)
186 if (strcpy (dest, &adr[outer]) != dest
187 || strlen (dest) != (size_t) (inner - outer))
189 printf ("strcpy flunked for outer = %d, inner = %d\n",
200 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
204 for (len = 0; len < size - outer; ++len)
206 if (strncpy (dest, &adr[outer], len) != dest
207 || memcmp (dest, &adr[outer], len) != 0)
209 printf ("outer strncpy flunked for outer = %d, len = %Zd\n",
217 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
219 for (inner = MAX (outer, size - 64); inner < size; ++inner)
225 for (len = 0; len < size - outer + 64; ++len)
227 if (strncpy (dest, &adr[outer], len) != dest
228 || memcmp (dest, &adr[outer],
229 MIN (inner - outer, len)) != 0
230 || (inner - outer < len
231 && strlen (dest) != (inner - outer)))
233 printf ("strncpy flunked for outer = %d, inner = %d, len = %Zd\n",
237 if (strncpy (dest + 1, &adr[outer], len) != dest + 1
238 || memcmp (dest + 1, &adr[outer],
239 MIN (inner - outer, len)) != 0
240 || (inner - outer < len
241 && strlen (dest + 1) != (inner - outer)))
243 printf ("strncpy+1 flunked for outer = %d, inner = %d, len = %Zd\n",
253 #ifndef __FreeBSD__ && !(defined __sun__ && defined __svr4__)
255 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
257 for (inner = MAX (outer, size - 64); inner < size; ++inner)
261 if ((stpcpy (dest, &adr[outer]) - dest) != inner - outer)
263 printf ("stpcpy flunked for outer = %d, inner = %d\n",
273 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
275 for (middle = MAX (outer, size - 64); middle < size; ++middle)
279 for (inner = 0; inner < size - outer; ++ inner)
281 if ((stpncpy (dest, &adr[outer], inner) - dest)
282 != MIN (inner, middle - outer))
284 printf ("stpncpy flunked for outer = %d, middle = %d, "
285 "inner = %d\n", outer, middle, inner);
296 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
297 for (inner = 0; inner < size - outer; ++inner)
298 if (memcpy (dest, &adr[outer], inner) != dest)
300 printf ("memcpy flunked for outer = %d, inner = %d\n",
305 #if !defined __FreeBSD__ && !(defined __sun__ && defined __svr4__)
307 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
308 for (inner = 0; inner < size - outer; ++inner)
309 if (mempcpy (dest, &adr[outer], inner) != dest + inner)
311 printf ("mempcpy flunked for outer = %d, inner = %d\n",